Question

If the said advertisement is put on an iron hoarding then due to which natural phenomenon is the hoarding most likely to turn to orange-red-brown colour

Answer 1

Answer:

Rusting

Explanation:

Iron oxide another name is rust. ,This phenomena occurs when iron a metal alloy having part of reacts with oxygen in the presence of moisture. Rusting is a gradual process where the oxygen combines with the metal at an atomic level, making Iron Oxide which is reddish brown in color and it basically deteriorate the life of iron